27143002135550 has 96 divisors (see below), whose sum is σ = 59562118447104. Its totient is φ = 9005577408000.

The previous prime is 27143002135517. The next prime is 27143002135583. The reversal of 27143002135550 is 5553120034172.

It is an interprime number because it is at equal distance from previous prime (27143002135517) and next prime (27143002135583).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 349233494 + ... + 349311206.

It is an arithmetic number, because the mean of its divisors is an integer number (620438733824).

Almost surely, 2^{27143002135550} is an apocalyptic number.

27143002135550 is an abundant number, since it is smaller than the sum of its proper divisors (32419116311554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27143002135550 is a wasteful number, since it uses less digits than its factorization.

27143002135550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109954 (or 109949 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 27143002135550 in words is "twenty-seven trillion, one hundred forty-three billion, two million, one hundred thirty-five thousand, five hundred fifty".